Home / 487,018.52-672,083.60-272,158.53

Finding the Fourth Proportional to 487,018.52, 672,083.60 and 272,158.53

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Solution

The fourth proportional to 487,018.52, 672,083.60 and 272,158.53 is: 375,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,018.52 : 672,083.60 = 272,158.53 : x
  2. Step 2: Convert to fraction form
    487,018.52/672,083.60 = 272,158.53/x
  3. Step 3: Cross multiply
    487,018.52x = 672,083.60 × 272,158.53
  4. Step 4: Simplify right side
    487,018.52x = 182,913,283,252.32
  5. Step 5: Solve for x
    x = 182,913,283,252.32/487,018.52
  6. Step 6: Final answer
    x = 375,577.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.